Home / 13,887.06-19,144.21-9,901.26

Finding the Fourth Proportional to 13,887.06, 19,144.21 and 9,901.26

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Solution

The fourth proportional to 13,887.06, 19,144.21 and 9,901.26 is: 13,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.06 : 19,144.21 = 9,901.26 : x
  2. Step 2: Convert to fraction form
    13,887.06/19,144.21 = 9,901.26/x
  3. Step 3: Cross multiply
    13,887.06x = 19,144.21 × 9,901.26
  4. Step 4: Simplify right side
    13,887.06x = 189,551,759.86
  5. Step 5: Solve for x
    x = 189,551,759.86/13,887.06
  6. Step 6: Final answer
    x = 13,649.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.